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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.scheduler.cluster.mesos
import scala.language.reflectiveCalls
import org.apache.mesos.Protos.Value
import org.mockito.Mockito._
import org.scalatest._
import org.scalatest.mock.MockitoSugar
import org.apache.spark.{SparkConf, SparkContext, SparkFunSuite}
class MesosSchedulerUtilsSuite extends SparkFunSuite with Matchers with MockitoSugar {
// scalastyle:off structural.type
// this is the documented way of generating fixtures in scalatest
def fixture: Object {val sc: SparkContext; val sparkConf: SparkConf} = new {
val sparkConf = new SparkConf
val sc = mock[SparkContext]
when(sc.conf).thenReturn(sparkConf)
}
val utils = new MesosSchedulerUtils { }
// scalastyle:on structural.type
test("use at-least minimum overhead") {
val f = fixture
when(f.sc.executorMemory).thenReturn(512)
utils.executorMemory(f.sc) shouldBe 896
}
test("use overhead if it is greater than minimum value") {
val f = fixture
when(f.sc.executorMemory).thenReturn(4096)
utils.executorMemory(f.sc) shouldBe 4505
}
test("use spark.mesos.executor.memoryOverhead (if set)") {
val f = fixture
when(f.sc.executorMemory).thenReturn(1024)
f.sparkConf.set("spark.mesos.executor.memoryOverhead", "512")
utils.executorMemory(f.sc) shouldBe 1536
}
test("parse a non-empty constraint string correctly") {
val expectedMap = Map(
"os" -> Set("centos7"),
"zone" -> Set("us-east-1a", "us-east-1b")
)
utils.parseConstraintString("os:centos7;zone:us-east-1a,us-east-1b") should be (expectedMap)
}
test("parse an empty constraint string correctly") {
utils.parseConstraintString("") shouldBe Map()
}
test("throw an exception when the input is malformed") {
an[IllegalArgumentException] should be thrownBy
utils.parseConstraintString("os;zone:us-east")
}
test("empty values for attributes' constraints matches all values") {
val constraintsStr = "os:"
val parsedConstraints = utils.parseConstraintString(constraintsStr)
parsedConstraints shouldBe Map("os" -> Set())
val zoneSet = Value.Set.newBuilder().addItem("us-east-1a").addItem("us-east-1b").build()
val noOsOffer = Map("zone" -> zoneSet)
val centosOffer = Map("os" -> Value.Text.newBuilder().setValue("centos").build())
val ubuntuOffer = Map("os" -> Value.Text.newBuilder().setValue("ubuntu").build())
utils.matchesAttributeRequirements(parsedConstraints, noOsOffer) shouldBe false
utils.matchesAttributeRequirements(parsedConstraints, centosOffer) shouldBe true
utils.matchesAttributeRequirements(parsedConstraints, ubuntuOffer) shouldBe true
}
test("subset match is performed for set attributes") {
val supersetConstraint = Map(
"os" -> Value.Text.newBuilder().setValue("ubuntu").build(),
"zone" -> Value.Set.newBuilder()
.addItem("us-east-1a")
.addItem("us-east-1b")
.addItem("us-east-1c")
.build())
val zoneConstraintStr = "os:;zone:us-east-1a,us-east-1c"
val parsedConstraints = utils.parseConstraintString(zoneConstraintStr)
utils.matchesAttributeRequirements(parsedConstraints, supersetConstraint) shouldBe true
}
test("less than equal match is performed on scalar attributes") {
val offerAttribs = Map("gpus" -> Value.Scalar.newBuilder().setValue(3).build())
val ltConstraint = utils.parseConstraintString("gpus:2")
val eqConstraint = utils.parseConstraintString("gpus:3")
val gtConstraint = utils.parseConstraintString("gpus:4")
utils.matchesAttributeRequirements(ltConstraint, offerAttribs) shouldBe true
utils.matchesAttributeRequirements(eqConstraint, offerAttribs) shouldBe true
utils.matchesAttributeRequirements(gtConstraint, offerAttribs) shouldBe false
}
test("contains match is performed for range attributes") {
val offerAttribs = Map("ports" -> Value.Range.newBuilder().setBegin(7000).setEnd(8000).build())
val ltConstraint = utils.parseConstraintString("ports:6000")
val eqConstraint = utils.parseConstraintString("ports:7500")
val gtConstraint = utils.parseConstraintString("ports:8002")
val multiConstraint = utils.parseConstraintString("ports:5000,7500,8300")
utils.matchesAttributeRequirements(ltConstraint, offerAttribs) shouldBe false
utils.matchesAttributeRequirements(eqConstraint, offerAttribs) shouldBe true
utils.matchesAttributeRequirements(gtConstraint, offerAttribs) shouldBe false
utils.matchesAttributeRequirements(multiConstraint, offerAttribs) shouldBe true
}
test("equality match is performed for text attributes") {
val offerAttribs = Map("os" -> Value.Text.newBuilder().setValue("centos7").build())
val trueConstraint = utils.parseConstraintString("os:centos7")
val falseConstraint = utils.parseConstraintString("os:ubuntu")
utils.matchesAttributeRequirements(trueConstraint, offerAttribs) shouldBe true
utils.matchesAttributeRequirements(falseConstraint, offerAttribs) shouldBe false
}
}
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